David Lehman

Project Manager, Retired from NASA's Jet Propulsion Laboratory

Free Educational Speaker in Los Angeles & Orange County

  • Space Missions in a Nutshell with a Focus on Mars

    TOPIC CATEGORY: Educational

    What is that red dot among the stars? Learn the answer to this question, how NASA space missions are designed, and how this knowledge can be used to send spacecraft to explore the rusty-red colored planet Mars. You will also learn what is going on at Mars now and future NASA plans to explore Mars. MORE >

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  • Dare Mighty Things – A Short History of NASA’s Jet Propulsion Laboratory

    The origins of NASA’s Jet Propulsion Laboratory date back to the 1930s, when Caltech professor Theodore von Kármán oversaw pioneering work in rocket propulsion. After unsuccessful and sometimes hazardous experiments, several of his graduate students were forced to move their work off campus. They chose the Arroyo Seco, a dry canyon wash north of the Rose Bowl in Pasadena, California – and future home of JPL. This early work grew into a laboratory of over 6000 employees that has sent spacecraft to every planet in our solar system and two spacecraft now in interstellar space. MORE >

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  • Understanding Project Management in Space Missions

    In this presentation Mr. Lehman will summarize the basic principles of project management. This will be followed by a summary of NASA’s process for managing space projects throughout the life cycle, including formulation which consists of Phase A (concept & technology development) and Phase B (preliminary design and technology completion phase), approval for implementation, and implementation which includes Phase C (final design & fabrication), Phase D (system assembly, integration & test, launch & checkout), and Phase E (operations and sustainment). He will address how NASA forms teams including the importance of key roles such as Project Manager, Project Systems Engineer (PSE), Safety & Mission Assurance Manager, and System Managers. He will then address the role of systems engineering in project management and the process of how PSEs mature their systems-level preliminary designs, and then address the expected maturity state of projects as they progress through the life cycle. Finally, Mr. Lehman will present three case studies in project management: the Deep Space 1 mission, the Mars Climate Orbiter failure lessons learned, and the last mission of the Space Shuttle Challenger. MORE >

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  • The Martian Ladies of NASA

    TOPIC CATEGORY: Educational

    Who are among the most prominent NASA ladies in our endeavors to explore Mars? Should future Mars crewed missions have all-female crews? These questions will be answered along with a description of the Mars Exploration Program, the Mars Sample Return Program, and the ARTEMIS program which has as one of its goals to send the first astronauts to Mars. MORE >

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  • WE ARE GOING! To the Moon with NASA

    TOPIC CATEGORY: Educational

    Are you ready to embark on an extraordinary journey to the Moon? Learn about NASA's ARTEMIS program to ignite your imagination and curiosity like never before! Imagine standing on the lunar surface, witnessing breathtaking lunar landscapes, and exploring uncharted territories. ARTEMIS is not just a mission; it's a testament to human ingenuity and our unrelenting pursuit of knowledge. MORE >

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